Lisa Sardinia is a microbiologist whose PhD research focused on coronavirus replication years before COVID-19 made coronaviruses part of everyday conversation.
In this episode of Maxwell’s Kitchen, Lisa explains how viruses work, why coronaviruses spread so effectively, what gain-of-function research means, and how mRNA vaccines produce an immune response. We also talk about genetics, HIV resistance, human evolution, infectious disease, climate change, population growth, consumerism, homelessness, immigration, and American politics.
The conversation starts with microbiology but gradually becomes a much bigger discussion about human beings. How much of our behavior still comes from a world where survival was difficult? What happens when instincts developed for small groups are dropped into a civilization of eight billion people? And how good are humans at dealing with problems that unfold slowly instead of threatening us immediately?
In This Episode
Biology, microbiology, and coronavirus research
How RNA viruses replicate
Why viruses need living host cells
Henrietta Lacks and immortal cell lines
Virus research and laboratory safety
Gain-of-function research
COVID-19, mutations, and infectious disease
Vaccines, immunity, and mRNA technology
HIV resistance and genetic variation
Human genetic bottlenecks
Human evolution and natural selection
Fear, anxiety, and modern life
Climate change and human extinction
Population growth and consumerism
Advertising, algorithms, and attention
Homelessness and mental health
Immigration, borders, and national identity
The Constitution, Citizens United, and ranked-choice voting
Guest
Lisa Sardinia, PhD, JD
Lisa Sardinia is a microbiologist and professor whose academic background includes biology, chemistry, microbiology, genetics, bioinformatics, and law. Her doctoral research focused on coronavirus replication, giving her an unusually relevant perspective when COVID-19 emerged decades later.
That scientific background drives the first half of the episode, but Lisa’s interests extend well beyond viruses. The conversation eventually connects biology and evolution to questions about human behavior, technology, economics, climate, and politics.
Useful Links
Lisa Sardinia at Pacific University
https://www.pacificu.edu/about/directory/people/lisa-sardinia-phd-jd
Maxwell’s Kitchen Interviews
https://maxwellskitchenpodcast.com/podcast/interviews
Viruses, Coronavirus Research, and mRNA Vaccines
Lisa begins by explaining what microbiologists study and why viruses are unusual. Unlike organisms that can reproduce independently, viruses need living host cells to make more copies of themselves. Coronaviruses are RNA viruses, and Lisa explains some of the characteristics that made them interesting to researchers long before COVID-19 appeared.
We also talk about growing viruses in laboratory cell cultures, the story of Henrietta Lacks, laboratory safety, and gain-of-function research. Rather than treating the phrase as a political talking point, Lisa explains what gaining a new biological function can actually mean for a virus, including changes that affect which cells or species it can infect.
The discussion then moves into vaccines, mutations, immunity, and mRNA technology. Lisa walks through how an mRNA vaccine produces viral proteins that allow the immune system to recognize a threat without altering a person’s DNA.
This episode was recorded in 2022, so the COVID-specific discussion reflects the information and conversation at that time rather than current medical guidance.
Genetics and Human Evolution
Viruses lead naturally into genetics and evolution.
Lisa explains how genetic variation can make some people more or less susceptible to particular infectious diseases, including well-known examples involving HIV. We also talk about genetic bottlenecks and why humans are relatively genetically similar despite the enormous differences we see between individuals and populations.
From there, the conversation becomes a broader look at human evolution. Traits such as fear, aggression, appetite, stress responses, and short-term thinking developed in environments very different from the one most people inhabit today.
Behaviors that helped humans survive when food was scarce and danger was immediate do not always work as well in a world of abundant calories, smartphones, advertising, traffic, and constant information.
Climate Change, Population, and Modern Life
The evolutionary discussion eventually becomes a question about scale.
Humans spent most of our history living in relatively small groups. Today, more than eight billion people share interconnected economies, food systems, governments, transportation networks, and technology. Lisa and I talk about whether our instincts and institutions are well suited to managing problems at that scale.
Climate change becomes one example. Humans are very good at responding to immediate threats, but much worse at reacting to problems whose consequences develop gradually over decades.
We also discuss population growth, food production, the Industrial Revolution, economic growth, consumerism, and advertising. Modern systems depend heavily on people producing, buying, and consuming more, while increasingly sophisticated algorithms compete for the limited amount of attention each person has available.
Homelessness, Politics, and Governing Millions of People
The final part of the episode moves into homelessness, mental health, immigration, national borders, the Constitution, term limits, campaign finance, Citizens United, and ranked-choice voting.
One idea that comes up repeatedly is that large problems rarely have one clean solution. Homelessness can involve housing, addiction, mental illness, employment, family support, and circumstances outside an individual’s control. Politics has the same problem. Systems designed for a much smaller country now have to represent hundreds of millions of people with very different priorities.
Lisa makes a useful observation during the conversation: when someone begins explaining a complicated problem with “It’s simple, we just need to...,” there is a good chance the problem is not actually simple.
That idea ends up connecting much of the episode. Viruses are complicated. Evolution is complicated. Human societies are even worse.
Quick Takeaways
Viruses depend on living host cells to reproduce.
Coronavirus research existed for decades before COVID-19.
Gain-of-function research can refer to changes that give an organism or virus a new biological capability.
mRNA vaccines use temporary instructions that help the immune system recognize specific viral proteins.
Genetic variation can affect susceptibility to infectious disease.
Human behavior still reflects evolutionary pressures that developed in environments very different from modern life.
Climate change, population growth, consumerism, homelessness, and political systems become harder to manage as societies increase in size and complexity.
More Interviews
Human Evolution, Extinction Events, and Why We’re Still Here with Stephen Frost
https://maxwellskitchenpodcast.com/maxwells-kitchen-podcast/2023/01/25-episode-103-stephen-frost
A deeper look at primates, extinction events, fossils, natural selection, intelligence, and the evolutionary path that eventually produced humans.
Missoula Floods, Ice Age Floods, and Pacific Northwest Geology with Scott Burns
https://maxwellskitchenpodcast.com/maxwells-kitchen-podcast/2023/02/16-episode-106-scott-burns
Geologist Scott Burns explains the enormous Ice Age floods that shaped the Pacific Northwest, along with fossils, climate, landscapes, and the evidence scientists use to reconstruct the past.
Float Tanks, Sensory Deprivation, and Float On with Graham Talley
https://maxwellskitchenpodcast.com/maxwells-kitchen-podcast/2022/11/22-episode-96-graham-talley
A conversation about sensory deprivation, meditation, mental noise, unusual experiences, and what happens when you deliberately remove most of the stimulation from modern life.
About This Episode
This episode is part of the Maxwell’s Kitchen interview archive, a collection of long-form conversations with scientists, musicians, researchers, artists, business owners, and people with unusual expertise and experiences.
The current Maxwell’s Kitchen is built around travel, but these conversations remain part of the larger archive for anyone who wants to keep exploring. Browse more interviews, watch the full episode, or follow one of the related conversations above.
